US PATENT SUBCLASS 277 / FOR 232
.~.~ End-to-end tongue and slot (277/221)

Current as of: June, 1999
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277 /   HD   SEAL FOR A JOINT OR JUNCTURE

FOR 227  DF  SPLIT ANNULUS (227/216) {4}
FOR 231  DF  .~ With joining structure (277/220) {2}
FOR 232.~.~ End-to-end tongue and slot (277/221)

DEFINITION

Classification: 277/FOR.232

Foreign art collections comprising a tongue extending outwardly from one end and a complementary slot in the opposing end for receiving said tongue.